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Not sure where it goes but I am positive it is key ON 12v positive wire. It should not touch the ground Alex

I am almost 100% positive it is custom autosound brand. I have similar unit and it also has running horse on the tape cover Alex

So I got the engine back and look what I have discovered.... they had trouble installing their headers and covered 30-40% of exhaust port . No wonder engine had hard time pushing all that air out at high rpm

Dyno2000. It's old but seems to be fairly accurate.

I just did Dyno Simulation and wow i think its that cam that loses all the power at 4700 RPM.... Looking at the simulation is almost identical to the real thing except my power drop happens much faster after 4700 RPM. Regardless not sure if i should be buying another cam or just keep it the way...

Good call on the cam. I did not think about that. I'll run that info by the machine shop to see what they say.  What cam did you end up choosing? I will also be running efi with this engine. I got fitech running on my old one really well. So I spoke to speedmaster techs and they agreed with my...

Thanks for your help. The carb we used for most of the pulls was 750 mechanical secondary's.

You probably did not see my question from the previous post where I asked if I could use 3v CHI manifold with speedmaster heads. So No, I do not want to buy manifold from the same company but will do if I cant use any other 3v intake that will fit those heads. i'll just go with high-rise...

The we discussed in  this thread last year: Lunati 62503: •Advertised Duration (Int/Exh): 268/276 •Duration @ .050 (Int/Exh): 227/233 •Gross Valve Lift (Int/Exh): .552/.564 •LSA/ICL: 110/106 •RPM Range: 2000-6000 We tried 3 different Carbs: 600cfm holley, 750 cfm and 900 something not...

Don, I have no doubt that If I can figure out what the restriction/issue is this engine will make over 500 HP. I am already happy with the torque numbers Alex

Hey, no hard feelings here. I knew what I was getting into. It was simple decision to save money. CHI heads are about 2400 dollars while these heads cost me 1000 and that is with all updated valve train components. This is not going to be racing engine and it will not see lots of action past...

The engine builder did all the work. I assume he knows what he is doing. they build mostly big blocks and race engine but definitely very knowledgeable BTW, oil pressure stayed around 77 PSI the whole run. We did more then 10 in total. each time we changed something to see if the issue goes...

OK guys,  so after almost one year the engine was built and dynoed today. However, we have an issue.... So as i said, i went with the 408 cleveland stroker kit and speedmaster 220cc 3v aluminum heads. All internals (valve train) that came with the heads have been replaced with quality parts...

Thanks so much for looking into this for me. I already have Quarter panels so I do not need those however still looking for those corner quarter panels. If you come across pair of those just let me know   Alex

Thanks

Looking for both Quarter panel corner trims and panel above trap door. See attached image Please PM me what you got and the price I also have US address so no need to ship to Canada directly Thanks Alex

Yes please . I am looking for both corner quarter panel trims as well as panel under the window. I'll send you PM. Thanks Alex

Thanks HemiKiller. I now know what they are called and can find some for other years except for 71-73 fastback. I did not realize they are so hard to find cheers Alex

Hi  guys My car is missing these two pieces (see attached image) but I do not know what they are called so that I can find them on the net... Can you help me please? I have 72 Mach1 Thanks Alex